Multiple vulnerabilities in Nextcloud user_oidc



Published: 2022-11-28
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-39338
CVE-2022-39339
CWE-ID CWE-79
CWE-319
Exploitation vector Network
Public exploit N/A
Vulnerable software
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user_oidc
Web applications / Modules and components for CMS

Vendor Nextcloud

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Stored cross-site scripting

EUVDB-ID: #VU69627

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-39338

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the Authorization Endpoint. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

user_oidc: 0.1.0 - 1.2.0


CPE2.3 External links

http://github.com/nextcloud/security-advisories/security/advisories/GHSA-5fpw-795h-rg57
http://github.com/nextcloud/user_oidc/pull/496
http://hackerone.com/reports/1687410

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Cleartext transmission of sensitive information

EUVDB-ID: #VU69630

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-39339

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information. A remote administrator can gain access to sensitive data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

user_oidc: 0.1.0 - 1.2.0


CPE2.3 External links

http://hackerone.com/reports/1687005
http://github.com/nextcloud/user_oidc/pull/495
http://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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